MN12hybrid
Active LVC Member
My 94 Mark (base with 240k miles roughly) decided to not start up today - I thought it was the fuel pump at first but after checking I hear the pump starting up when turning the key to "accessory." I have had this same issue in the past caused by the factory alarm. I dont have the key transmitter either. My door sensor on the drivers door makes it worse since it needs to be changed, along with a new door handle (and the internal switch with it too). My interior door lights happen to stay on when the car is running as well, but the past 1.5 years I have had the car it has been nothing more than a nuisance.
I checked the forum history and could not find anything to specific to what I am facing right now.
When I park my car and close the driver door, and walk around and go into the passenger door the green security light flashes. If I lock the doors and close the pass side door the green light will still flash (it does this about 75% of the time). Within a moment or less the alarm can go off after that... If I type in my code on the keypad on the driver door, the flashing green light will stop. Entering the code will also turn off the alarm, and then I am able to lock the driver door and walk away without worries that the car alarm will activate. It seems as if the driver exits the car and closes the door after the passenger it seems to not happen at all, and I was suspecting that the door switches are tripping out my alarm.
Whenever I park my car, the keyhole light, and the interior door lights stay on and its the computer that cuts them off after a while. If you enter the trunk or the hood, the lights are also cut off. The only way to get those lights I just mentioned to turn back on is to touch a number on the keypad, and the lights only stay on as long as the key pad is lit up.
Another weird thing is if you have turn on the headlights without the car running, it sounds like there is a "siren like" whooooop sound coming from the inside of the dashboard. Start the car up with the lights on and that sound is not there.
In the past, I tried starting the car when the green security was flashing and it wouldnt start at all - I dont remember if it didnt crank though since that was close to 1.5 years ago right after I just got the car.
I started my car today for just a moment because I was going to move it, but I didnt end up moving it and it had no problem starting then. I close my car up (or I thought so at least) and upon getting back to my car later I noticed the pass side door was slightly ajar to the point where it was not clicked in place and hooking on the striker. The security light on the dash was not lit up, when I got in and tried starting I had found that it just cranks with no start.
I still have to check if its even producing a spark, and I still wanted to see if I can get it to start with starting fluid sprayed into the TB while cranking. Obviously I have to check these other basics and I will be able to tomorrow morning with more time available to me, but I wanted to check first on here to see what else I can do while I diagnose this in the next 8-9 hours. As soon as I get this additional info I will post it in this thread also.
I appreciate the help! I have to get this car moving again asap to get me back and forth to work and I am nerve wrecked right now since I just started another job and the last thing I need is to miss work this early after starting. I have a bunch of other bugs that I am going to finally put time into and work out now that I have a job again, so I will be making more posts as I work with these things. I also am making another post for my passenger side tail light since that seems to be an electrical problem as well and using search doesnt give too specific of an answer.
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Some questions I had...
-- If the alarm is keeping the car from starting, is it just cutting the spark or does it actually cut power to the starter?
-- Do the fuel pumps on these cars get weak and actually cause enough of a problem to make the car hesitate? I ask this because my car was hesitating recently and I thought that maybe my fuel pump is on its last legs. I probably need to change the pump anyway being with 240k miles just for preventative measures, but I want to get the car mobile again asap first. I checked the relay and cut off switch in the trunk, and there is power to the relay as well.
-- Is it possible that the pump is not getting enough power or that its just too weak (even though it powers up and sounds normal)?
-- Does this sound like the alarm could be causing this? I disconnected the battery for an hour while charging it (the cranking constantly took a lot of juice).
-- How often do the crank sensors go bad on these cars? I have that as a distant possibility floating around in my head as well.
-- Over here in Los Angeles there are wrecking yards with plenty of Marks (usually) and I will go again in the next couple days. I am trying to figure out what I need to get on my car to fix this issue, so I can retrieve this in the wrecking yard.
I checked the forum history and could not find anything to specific to what I am facing right now.
When I park my car and close the driver door, and walk around and go into the passenger door the green security light flashes. If I lock the doors and close the pass side door the green light will still flash (it does this about 75% of the time). Within a moment or less the alarm can go off after that... If I type in my code on the keypad on the driver door, the flashing green light will stop. Entering the code will also turn off the alarm, and then I am able to lock the driver door and walk away without worries that the car alarm will activate. It seems as if the driver exits the car and closes the door after the passenger it seems to not happen at all, and I was suspecting that the door switches are tripping out my alarm.
Whenever I park my car, the keyhole light, and the interior door lights stay on and its the computer that cuts them off after a while. If you enter the trunk or the hood, the lights are also cut off. The only way to get those lights I just mentioned to turn back on is to touch a number on the keypad, and the lights only stay on as long as the key pad is lit up.
Another weird thing is if you have turn on the headlights without the car running, it sounds like there is a "siren like" whooooop sound coming from the inside of the dashboard. Start the car up with the lights on and that sound is not there.
In the past, I tried starting the car when the green security was flashing and it wouldnt start at all - I dont remember if it didnt crank though since that was close to 1.5 years ago right after I just got the car.
I started my car today for just a moment because I was going to move it, but I didnt end up moving it and it had no problem starting then. I close my car up (or I thought so at least) and upon getting back to my car later I noticed the pass side door was slightly ajar to the point where it was not clicked in place and hooking on the striker. The security light on the dash was not lit up, when I got in and tried starting I had found that it just cranks with no start.
I still have to check if its even producing a spark, and I still wanted to see if I can get it to start with starting fluid sprayed into the TB while cranking. Obviously I have to check these other basics and I will be able to tomorrow morning with more time available to me, but I wanted to check first on here to see what else I can do while I diagnose this in the next 8-9 hours. As soon as I get this additional info I will post it in this thread also.
I appreciate the help! I have to get this car moving again asap to get me back and forth to work and I am nerve wrecked right now since I just started another job and the last thing I need is to miss work this early after starting. I have a bunch of other bugs that I am going to finally put time into and work out now that I have a job again, so I will be making more posts as I work with these things. I also am making another post for my passenger side tail light since that seems to be an electrical problem as well and using search doesnt give too specific of an answer.
---------------------------------------------------------------------------------
Some questions I had...
-- If the alarm is keeping the car from starting, is it just cutting the spark or does it actually cut power to the starter?
-- Do the fuel pumps on these cars get weak and actually cause enough of a problem to make the car hesitate? I ask this because my car was hesitating recently and I thought that maybe my fuel pump is on its last legs. I probably need to change the pump anyway being with 240k miles just for preventative measures, but I want to get the car mobile again asap first. I checked the relay and cut off switch in the trunk, and there is power to the relay as well.
-- Is it possible that the pump is not getting enough power or that its just too weak (even though it powers up and sounds normal)?
-- Does this sound like the alarm could be causing this? I disconnected the battery for an hour while charging it (the cranking constantly took a lot of juice).
-- How often do the crank sensors go bad on these cars? I have that as a distant possibility floating around in my head as well.
-- Over here in Los Angeles there are wrecking yards with plenty of Marks (usually) and I will go again in the next couple days. I am trying to figure out what I need to get on my car to fix this issue, so I can retrieve this in the wrecking yard.
